Children and youth: selected health characteristics, United States--1958 and 1968.
D003710:Demography; D003753:Dental Health Surveys; D003815:Dentists / Q000706:statistics & numerical data; D006306:Health Surveys; D049668:History, 15th Century; D049669:History, 16th Century; D049690:History, Ancient; D049691:History, Medieval; D049711:History, Modern 1601-; D006760:Hospitalization; D007348:Insurance, Health; D009017:Morbidity; D010820:Physicians / Q000706:statistics & numerical data; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014481:United States